SherpaPartonSelector.cc

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#include "PhysicsTools/JetMCAlgos/interface/SherpaPartonSelector.h"
#include "PhysicsTools/JetMCUtils/interface/CandMCTag.h"

SherpaPartonSelector::SherpaPartonSelector() {}

SherpaPartonSelector::~SherpaPartonSelector() {}

void SherpaPartonSelector::run(const edm::Handle<reco::GenParticleCollection>& particles,
                               std::unique_ptr<reco::GenParticleRefVector>& partons) {
  // loop over particles and select partons
  for (reco::GenParticleCollection::const_iterator it = particles->begin(); it != particles->end(); ++it) {
    if (it->status() != 11)
      continue;  // only accept status==11 particles
    if (!CandMCTagUtils::isParton(*it))
      continue;  // skip particle if not a parton

    partons->push_back(reco::GenParticleRef(particles, it - particles->begin()));
  }

  return;
}